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Arturiano [62]
3 years ago
14

What is cosine ? I really need this answer for my test tomorrow. Please help

Mathematics
2 answers:
stiv31 [10]3 years ago
4 0
Cosine is one of the three part for trigonometry. 

You have sin, cos, and tan. 

You can easily do this by understanding SOH CAH TOA. 

Sin = OPPO. over HYPOTENUSE
Cos = ADJACENT over HYPOTENUSE
Tan = OPPO. over ADJACENT 

I hope this helps!

Kisachek [45]3 years ago
3 0
Cosine is \frac{adjacent}{hypotenuse} which applies to a right triangle. I hope that helps you.
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You have 2 5/8 pizzas to share with three friends, how much pizza will each friend get?
Mazyrski [523]
2 5/8 divided by 3

(2*8)+5/8 divided by 3

16+5/8 divided by 3

(3*7/2^3)(1/3)

3*7/2^3*3

7/2^3

7/8

each friend would get 7/8 
5 0
2 years ago
Read 2 more answers
Simplify.
Dafna1 [17]

Answer:

A) 7x^3 + 13x^2 + 8x + 9

Step-by-step explanation:

(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)

I like to line them up vertically

7x^3 +3x^2 + 2x

+       (10x^2 + 6x + 9)

-----------------------------------

7x^3 +13x^2 +8x +9

4 0
3 years ago
Read 2 more answers
There are 269 basketball
Vesna [10]

Simple division. 269/48=5.60416666667. You probably cannot put decimals, so round to 6.

8 0
3 years ago
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Which rules of exponents will be used to evaluate the expression. Check all that apply
julia-pushkina [17]

Hello!

The answer are:

- Product of powers.

- Power of a power.

- Negative exponents.

<h2>Why?</h2>

Let's solve it!

It's a math rule that we must solve first what's into a brake or parenthesis, so,

First: Product of powers [(7)^{5}*(7)^{3}]

According to the exponent's law, we have a product of powers case, so, we need to sum the exponents and keep the base

Exponents: 5 and 3

Base: 7

Applying it we have:

(7)^{5+3}

(7)^{8}

Then,

We have a power of a power case, which involves multiplying the exponents:

[(7)^{5}*(7)^{3}]^{-4}

Exponents: 3 and -4

Then,

(7)^{8*-4}

Finally, we can apply the negative exponents, the negative exponent's rules state that negative exponents are the reciprocal of the positive exponents,

So, we will have that:

(7)^{-32}=\frac{1}{7^{32} }

Have a nice day!

6 0
3 years ago
Read 2 more answers
1. 7/18 * 1 ⅐ + 2/3. <br>2. 3x + 1 ⅐ = 2​
anzhelika [568]

Answer:

Step-by-step explanation:

for first one's answer visit;

https://answers.everydaycalculation.com/subtract-fractions/2-3-minus-7-18

for sencond one;

3x=2+1

3x=3

x=1

for more info visit;

https://www.cymath.com/answer?q=3x-1%3D2

7 0
2 years ago
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